It's AumSum Time
Can we burp in space?
I can burp in my personal space.
Just kidding.
Earth's gravity pulls food down, down, down.
Where?
To the bottom of our stomach.
Gases have begun to rise.
And, here they come.
But space has no gravity.
So, food and gases float together like chunky bubbles.
Now, what happens if we burp?
Everything comes out.
So, even if you can.
Don't burp in space.
Topic: Ear.
How do ears help with balancing?
They really do.
You don't believe me.
Okay.
Can you play a guitar and walk at the same time?
How do you think you are able to maintain your balance?
Do you know why you can't balance yourself anymore?
Wait, I will tell you.
This happens because there is a connection between our ears and body balance.
Our ear consists of 3 parts, outer ear, middle ear and inner ear.
Our inner ear works in sync with our eyes and muscles, helping us maintain balance.
While we are doing various activities.
The inner ear consists of three semicircular canals called superior semicircular canal.
Posterior semicircular canal and lateral semicircular canal.
The three semicircular canals are arranged in three different positions.
Each of these canals has a fluid called endolymph and hair cells called cilia at the base.
Whenever we move our head, the fluid moves, resulting in the movement of the cilia as well.
When the cilia moves, it sends signals to the brain informing which direction our head has just moved in.
Each canal has different functions as per the movement of our head.
When we move our head up and down.
The superior semicircular canal helps our brain to understand the yes motion.
When we tilt our head towards our shoulders.
The posterior semicircular canal helps our brain to understand the tilting motion.
When we move our head from side to side.
The lateral semicircular canal helps our brain to understand the no motion.
It was too complicated, right?
Okay.
Don't worry about it.
Relax.
Why don't you go on a merry go round ride?
Hey.
Why were you not able to maintain your balance?
This is because when you sat in the merry go round and started rotating.
The fluid in the semicircular canals also started to move.
After a while, it was moving at the same rate at which you were moving.
However, when the ride stopped and you got down from the ride.
The fluid was still in motion due to inertia.
Hence, even though you were not moving.
The moving fluid gave your brain a false information telling that you are still in motion.
Thus, you were not able to maintain your balance.
Topic: Caffeine.
How does coffee keep you awake?
By throwing an overnight party.
No.
When we perform our daily activities like thinking and playing, a by-product called adenosine is produced.
Adenosine slows down the brain activity.
But how?
In our brain, there are adenosine receptors which are perfectly moulded for this adenosine.
When the adenosine binds to these receptors, it activates them.
Causing to slow down the brain activity and thus making us feel sleepy.
However, drinking coffee keeps us awake and we don't feel sleepy.
This is because coffee contains a drug called caffeine which after digestion reaches our brain.
Caffeine is structurally similar to adenosine.
Being similar, caffeine binds to the adenosine receptors and thus blocks the adenosine from binding.
Hence, as adenosine does not bind, our receptors don’t slow the brain activity.
As a result, we remain awake.
Why does Saturn have rings?
Because it has got engaged.
No.
Scientists don't exactly know why Saturn has rings.
But they think that it is related to Roche limit.
What is Roche limit?
Roche limit is the distance from the planet at which objects in orbit around the planet.
Tend to be ripped apart by the planet's gravitational pull.
Now based on the Roche limit.
One of the prevailing theories is that Saturn's rings are remnants of celestial bodies like a moon or a comet.
Billions of years ago, a celestial body may have got too close to Saturn exceeding the
Roche limit.
Hence, its side facing the Saturn was pulled more strongly as compared to the side facing away.
So, this inconsistent gravitational pull may have ripped part the celestial body into pieces.
Finally, these pieces might have started revolving around Saturn, forming its beautiful rings.
How do scars form?
It is a secret process.
I can't reveal it.
No.
It's not a secret process.
A scar is formed when our skin tissue heals itself after an injury.
Our skin tissue has collagen.
Collagen is a structural protein produced by fibroblasts.
Collagen keeps our skin firm and it is usually arranged in a 'basket weave' pattern.
Can I use this basket to keep my bags of chips?
Please listen.
When we get injured, our skin tissue gets damaged.
So, in order to heal and close the wound, fibroblasts produce more collagen.
But, instead of arranging in a basket weave pattern.
The collagen cross-links and aligns in a single direction.
As a result, the injured area of the skin appears different from normal skin, thus causing a scar.